Home / 102,418.92-153,364.86-82,333.80

Finding the Fourth Proportional to 102,418.92, 153,364.86 and 82,333.80

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Solution

The fourth proportional to 102,418.92, 153,364.86 and 82,333.80 is: 123,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,418.92 : 153,364.86 = 82,333.80 : x
  2. Step 2: Convert to fraction form
    102,418.92/153,364.86 = 82,333.80/x
  3. Step 3: Cross multiply
    102,418.92x = 153,364.86 × 82,333.80
  4. Step 4: Simplify right side
    102,418.92x = 12,627,111,710.27
  5. Step 5: Solve for x
    x = 12,627,111,710.27/102,418.92
  6. Step 6: Final answer
    x = 123,288.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.